Commit 9ea57852 authored Jun 04, 2016 by Noa Osherovich Committed by Doug Ledford Jun 07, 2016

IB/mlx5: Fix entries checks in mlx5_ib_create_cq



Number of entries shouldn't be greater than the device's max
capability. This should be checked before rounding the entries number
to power of two.

Fixes: 51ee86a4 ('IB/mlx5: Fix check of number of entries...')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>

parent 2cc6ad5f

drivers/infiniband/hw/mlx5/cq.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -822,7 +822,8 @@ struct ib_cq mlx5_ib_create_cq(struct ib_device ibdev,
		int eqn;
		int err;

		if (entries < 0)
		if (entries < 0 \|\|
		(entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz))))
		return ERR_PTR(-EINVAL);

		if (check_cq_create_flags(attr->flags))